curl -X POST "https://api.joinformal.com/core.v1.PoliciesService/GetPolicyCodeValidity" \
  -H "X-API-KEY: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "example": "value"
  }'

{
  "valid": true,
  "ast": "<string>",
  "error": "<string>"
}